Corrosion prevention method of hydraulic system and device comprising high-energy wave descaling device

Abstract

The invention relates to an anti-corrosion method of a hydraulic system and a device comprising a high-energy wave descaling device, and belongs to the technical field of anti-corrosion. The anti-corrosion method comprises the steps that the high-energy wave descaling device is installed in the hydraulic support emulsion storage tank, and meanwhile, the high-energy wave descaling device is matched with emulsion to conduct anti-corrosion and rust removal through the high-energy wave technology. By means of the anti-corrosion and rust-removing functions of the high-energy wave technology, emulsified oil special for the hydraulic support is replaced, the use amount of the emulsified oil in the hydraulic support emulsified liquid circulating system is reduced, or a hydraulic support circulating system of a pure water medium is formed, and a newly-installed pipeline does not scale, rust or generate bacteria and algae; and corrosion, old scale and the like in the old pipeline are gradually dissolved and eliminated, and finally a protective oxide layer is formed on the inner wall of the pipeline, so that the inner wall of the pipeline is not corroded any more.

Description

Technical Field

[0001] The invention belongs to the technical field of corrosion prevention, and in particular relates to an corrosion prevention method for a hydraulic system and a device comprising a high-energy wave descaling device. Background Art

[0002] Hydraulic support is a support device composed of hydraulic components and mechanical parts. It is the main component of comprehensive mining equipment and plays an important protective role in underground coal mining. At present, underground hydraulic supports mainly use emulsion as the transmission medium, and the emulsion is driven by a hydraulic pump to circulate in various hydraulic components. Emulsion is a milky white transmission medium prepared by mixing 95% water and 5% additives. The additives are mainly hydraulic oil, antifreeze, rust inhibitor, antioxidant, defoaming agent and other chemicals. Compared with traditional anti-wear hydraulic oil, emulsion has many advantages. The cost of emulsion is much lower than that of hydraulic oil, and it has excellent emulsification and cleanability. It is much higher than mineral oil. The biggest advantage is that emulsion will not catch fire and its safety is better than mineral oil. Even so, there are still many problems with emulsions. For example, the production, storage, and maintenance of emulsions are more demanding than mineral oils. In addition, emulsions are prone to deterioration and decomposition, making it easier for bacteria and microorganisms to reproduce. The toxic gases produced by the decomposition of emulsions will threaten the safety of underground workers. At the same time, emulsions are easily affected by underground dust, and the emulsions will damage the hydraulic system when they are mixed with dust. Therefore, the emulsions used underground are generally replaced regularly, and the hydraulic system is thoroughly cleaned, which invisibly increases the labor intensity of underground workers and the operating and maintenance costs of coal mines. The discharge of waste liquid formed during the circulation of underground emulsions seriously pollutes groundwater and has always been a "difficult" problem that has plagued coal mine production. Summary of the invention

[0003] In view of the problems in the prior art that emulsion is used as the transmission medium of the hydraulic support, such as easy deterioration and susceptibility to dust, the present invention provides an anti-corrosion method for a hydraulic system and a device including a high-energy wave descaling device to solve the above problems.

[0004] The technical solution of the present invention is as follows: In a first aspect, the present invention provides an anti-corrosion method for a hydraulic system, comprising installing a high-energy wave descaling device in a water tank storing an emulsion of a hydraulic support, and simultaneously performing anti-corrosion and rust removal by using high-energy wave technology in combination with the emulsion.

[0005] Furthermore, the concentration of the emulsion in water is 1% to 3%.

[0006] Furthermore, the emulsion is HFAE10-5 (W) emulsified oil for Flowserve hydraulic support or HFAE10-4 SOLCENIC 2BW-C emulsified oil for Flowserve hydraulic support.

[0007] Furthermore, the base oil is at least one of mineral oil, vegetable oil or synthetic ester.

[0008] Furthermore, the anti-rust additive is at least one of zinc naphthenate, sodium petroleum sulfonate, barium petroleum sulfonate, benzotriazole, sorbitan monooleate or aluminum stearate.

[0009] Furthermore, the extreme pressure additive is one of chlorinated paraffin or phosphate ester.

[0010] Furthermore, the friction modifier is a saturated fatty acid.

[0011] In a second aspect, the present invention provides a device including a high-energy wave descaling device, comprising: a hydraulic support emulsion storage tank, the hydraulic support emulsion storage tank is a horizontally placed cylinder, and a liquid outlet pipe is provided on the side wall; a high-energy wave descaling device is provided inside the hydraulic support emulsion storage tank near the liquid outlet pipe; the high-energy wave descaling device is connected to the hydraulic support emulsion storage tank through a connecting rod; and the liquid outlet pipe is connected to the downhole hydraulic system.

[0012] The beneficial effects of the present invention are: The present invention utilizes the anti-corrosion and rust removal function of high-energy wave technology to replace the special emulsified oil for hydraulic supports, reduce the amount of emulsified oil in the hydraulic support emulsion circulation system, wherein the amount of emulsified oil is reduced by nearly 70%, greatly reducing the operation cost and maintenance cost of the hydraulic support circulation system, and reducing the problem of underground emulsion waste discharge. The present invention mainly installs a high-energy wave descaling device in emulsions of different concentrations, and observes the corrosion of the valve group after a period of operation or standing in dynamic and static conditions, and finally determines that the best emulsion ratio is achieved under the action of high-energy wave technology.

[0013] Under the action of this ultra-fine vibration wave, the activity of water is greatly enhanced. The physical properties of calcium, iron and other related substances in the water change under the interference and resonance of the high-energy wave. The scale will become loose and precipitate. The newly installed pipes will not scale, rust or produce algae. The rust and old scale in the old pipes will also be gradually dissolved and eliminated, and finally a protective oxide layer will be formed on the inner wall of the pipe, and the inner wall of the pipe will no longer be corroded. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1This is a graph showing the experimental results of static test 1# of Example 1 of the present invention.

[0016] Figure 2 This is a graph showing the experimental results of static test 2# of Example 1 of the present invention.

[0017] Figure 3 This is a graph showing the experimental results of static test 3# of Example 1 of the present invention.

[0018] Figure 4 This is a graph showing the experimental results of static test 4# of Example 1 of the present invention.

[0019] Figure 5 This is a graph showing the experimental results of static test 5# of Example 1 of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the device of the present invention.

[0021] Figure 7 It is a schematic diagram of the internal structure of the device of the present invention.

[0022] Figure 8 It is the effect picture before and after the water tank processed by Example 3.

[0023] In the figure, 1-hydraulic support emulsion storage tank, 2-liquid outlet pipe, 3-high energy wave descaling device, 4-connecting rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] Example 1 Bucket static test system, each test system is placed with the same carbon steel valve parts, 1#, 2#, 3# buckets are large buckets with a diameter of 34cm and a height of 55cm, including: Add municipal tap water to the 1# bucket and place a quantum high-energy wave rod, marked as "1#+water, rod"; (TETRADOML-830562-026) Add 1% emulsion into bucket 2 and place a quantum high-energy wave rod, marked as "2#+1%, rod"; Add 2% emulsion into bucket 3 and place a quantum high-energy wave rod, marked as "3#+2%, rod"; 4# and 5# buckets are small buckets with a diameter of 29cm and a height of 36cm, including: The 4# water bucket is only filled with municipal tap water and is marked as "4#+water"; Add 3% concentration emulsion into the 5# water bucket and mark it as “5#+3%”.

[0026] The emulsion is HFAE10-5 (W) emulsified oil for Flowserve hydraulic support.

[0027] The liquid level in the bucket must completely submerge the quantum high-energy wave rod. The carbon steel valve in the large bucket must be hung between the bucket wall and the rod, with the height located in the middle of the rod in the vertical direction. The carbon steel valve in the small bucket must be hung in the center of the bucket, located in the middle of the water height.

[0028] All the above test systems are connected to municipal tap water, and in each water tank and bucket, at least two metal hanging plates are hung. The thickness should not be less than 3mm, the length is 30cm, and the width is 20cm. Holes are drilled at the two corners of one end of the hanging plate and it is hung in the water.

[0029] Before the test, the test valves were disassembled and cleaned, numbered, and photographed for archiving as initial technical comparison data. After the test, the corrosion of the carbon steel valves in each test system was compared. The static test lasted for three months. Figure 1~Figure 5 shown.

[0030] As can be seen from the figure, in the pure water environment, the test valves are all corroded, but the corrosion degree of the valves affected by the quantum high energy wave technology is significantly lighter than that of the valves not affected by the quantum high energy wave technology. And the anti-corrosion effect of adding 1%~3% emulsion is basically the same, so when the emulsion concentration is reduced to 1%, combined with the quantum high energy wave technology, it can meet the anti-corrosion and lubrication requirements of the pipeline.

[0031] Example 2 A device including a high-energy wave descaling device comprises: a hydraulic support emulsion storage tank 1, wherein the hydraulic support emulsion storage tank 1 is a horizontally placed cylinder, and a liquid outlet pipe 2 is provided on the side wall; a high-energy wave descaling device 3 is provided inside the hydraulic support emulsion storage tank 1 near the liquid outlet pipe 2; the high-energy wave descaling device 3 is connected to the hydraulic support emulsion storage tank 1 through a connecting rod 4; and the liquid outlet pipe 2 is connected to a downhole hydraulic system.

[0032] Example 3 (1) Downhole dynamic realization system test The system consists of the device including the high-energy wave descaling device of Example 2 + a water pump + a jack, wherein the hydraulic support emulsion storage tank has a length of 1.8m, a diameter of 1.2m, and a circulation volume of 12m 3 / h. Emulsified oil concentration 1% + 1 quantum high energy wave rod, the quantum high energy wave rod needs to be hung in the water, facing the outlet of the water pipe, 30cm away from the outlet, 15cm away from the bottom of the water tank, and the water tank level needs to be maintained at 85cm~90cm. The test lasted for three months. After three months of testing, the inside of the pipeline Figure 8 As shown. Figure 8 The left picture in the middle shows the inside of the pipeline before the test, and the right picture shows the inside of the pipeline after three months of testing. It can be seen that when the emulsion concentration is 1%, combined with quantum high-energy wave technology, it can fully meet the anti-corrosion and lubrication requirements of the hydraulic support.

[0033] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A method for anti-corrosion of a hydraulic system, characterized in that: The method includes installing a high-energy wave descaling device in the emulsion storage tank of the hydraulic support, and simultaneously using the emulsion to perform anti-corrosion and rust removal through high-energy wave technology.

2. A method for anti-corrosion of a hydraulic system according to claim 1, characterized in that: The concentration of the emulsion in water is 1% to 3%.

3. The anti-corrosion method for a hydraulic system according to claim 1, characterized in that: The emulsion is HFAE10-5 (W) emulsified oil for Flowserve hydraulic support or HFAE10-4 SOLCENIC 2BW-C emulsified oil for Flowserve hydraulic support.

4. A method for anti-corrosion of a hydraulic system as claimed in claim 3, characterized in that: The base oil is at least one of mineral oil, vegetable oil or synthetic ester.

5. A method for anti-corrosion of a hydraulic system as claimed in claim 3, characterized in that: The anti-rust additive is at least one of zinc naphthenate, sodium petroleum sulfonate, barium petroleum sulfonate, benzotriazole, sorbitan monooleate or aluminum stearate.

6. A method for anti-corrosion of a hydraulic system as claimed in claim 3, characterized in that: The extreme pressure additive is one of chlorinated paraffin or phosphate ester.

7. A method for anti-corrosion of a hydraulic system as claimed in claim 3, characterized in that: The friction modifier is a saturated fatty acid.

8. A device comprising a high energy wave descaling device, comprising: A hydraulic support emulsion storage tank, which is a horizontally placed cylinder with a liquid outlet pipe on the side wall; characterized in that a high-energy wave descaling device is provided inside the hydraulic support emulsion storage tank near the liquid outlet pipe; the high-energy wave descaling device is connected to the hydraulic support emulsion storage tank through a connecting rod; and the liquid outlet pipe is connected to the downhole hydraulic system.

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